Last modified by Saxer Lin on 2025/04/15 17:24
<
From version < 83.8 >
edited by Xiaoling
on 2022/06/29 17:28
To version < 90.3 >
edited by Xiaoling
on 2022/08/18 11:46
>
Change comment: There is no comment for this version

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Content
... ... @@ -41,6 +41,8 @@
41 41  
42 42  (((
43 43  2) User can set up a LoRaWAN gateway locally and configure the controller to connect to the gateway via wireless.
44 +
45 +
44 44  )))
45 45  
46 46  (((
... ... @@ -166,11 +166,13 @@
166 166  Packet engine up to 256 bytes with CRC.
167 167  
168 168  
171 +
169 169  
170 170  )))
171 171  
172 172  == 1.3 Features ==
173 173  
177 +
174 174  * LoRaWAN Class A & Class C protocol
175 175  * Optional Customized LoRa Protocol
176 176  * Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/RU864/IN865
... ... @@ -179,8 +179,12 @@
179 179  * Firmware upgradable via program port
180 180  * Counting
181 181  
186 +
187 +
188 +
182 182  == 1.4  Applications ==
183 183  
191 +
184 184  * Smart Buildings & Home Automation
185 185  * Logistics and Supply Chain Management
186 186  * Smart Metering
... ... @@ -188,8 +188,12 @@
188 188  * Smart Cities
189 189  * Smart Factory
190 190  
199 +
200 +
201 +
191 191  == 1.5 Hardware Variants ==
192 192  
204 +
193 193  (% border="1" style="background-color:#f7faff; width:500px" %)
194 194  |(% style="width:103px" %)**Model**|(% style="width:131px" %)**Photo**|(% style="width:334px" %)**Description**
195 195  |(% style="width:103px" %)**LT22222-L**|(% style="width:131px" %)[[image:1653296302983-697.png]]|(% style="width:334px" %)(((
... ... @@ -201,8 +201,11 @@
201 201  * 1 x Counting Port
202 202  )))
203 203  
216 +
217 +
204 204  = 2. Power ON Device =
205 205  
220 +
206 206  The LT controller can be powered by 7 ~~ 24V DC power source. Connect VIN to Power Input V+ and GND to power input V- to power the LT controller.
207 207  
208 208  (((
... ... @@ -217,6 +217,7 @@
217 217  
218 218  == 3.1 How it works? ==
219 219  
235 +
220 220  (((
221 221  The LT is configured as LoRaWAN OTAA Class C mode by default. It has OTAA keys to join network. To connect a local LoRaWAN network, user just need to input the OTAA keys in the network server and power on the LT. It will auto join the network via OTAA. For LT-22222-L, the LED will show the Join status: After power on (% style="color:green" %)**TX LED**(%%) will fast blink 5 times, LT-22222-L will enter working mode and start to JOIN LoRaWAN network. (% style="color:green" %)**TX LED**(%%) will be on for 5 seconds after joined in network. When there is message from server, the RX LED will be on for 1 second. 
222 222  )))
... ... @@ -226,10 +226,14 @@
226 226  )))
227 227  
228 228  
245 +
229 229  == 3.2 Example to join LoRaWAN network ==
230 230  
248 +
231 231  (((
232 232  This chapter shows an example for how to join the TTN LoRaWAN Network. Below is the network structure, we use our LG308 as LoRaWAN gateway here. 
251 +
252 +
233 233  )))
234 234  
235 235  [[image:image-20220523172350-1.png||height="266" width="864"]]
... ... @@ -237,6 +237,8 @@
237 237  
238 238  (((
239 239  The LG308 is already set to connect to [[TTN network >>url:https://www.thethingsnetwork.org/]]. So what we need to do now is only configure register this device to TTN:
260 +
261 +
240 240  )))
241 241  
242 242  (((
... ... @@ -262,6 +262,7 @@
262 262  [[image:1653298023685-319.png]]
263 263  
264 264  
287 +
265 265  (((
266 266  (% style="color:blue" %)**Step 2**(%%): Power on LT and it will auto join to the TTN network. After join success, it will start to upload message to TTN and user can see in the panel.
267 267  )))
... ... @@ -272,6 +272,7 @@
272 272  
273 273  == 3.3 Uplink Payload ==
274 274  
298 +
275 275  There are five working modes + one interrupt mode on LT for different type application:
276 276  
277 277  * (% style="color:blue" %)**MOD1**(%%): (default setting): 2 x ACI + 2AVI + DI + DO + RO
... ... @@ -283,8 +283,10 @@
283 283  
284 284  
285 285  
310 +
286 286  === 3.3.1 AT+MOD~=1, 2ACI+2AVI ===
287 287  
313 +
288 288  The uplink payload includes totally 9 bytes. Uplink packets use FPORT=2 and every 10 minutes send one uplink by default.
289 289  
290 290  [[image:image-20220523174024-3.png]]
... ... @@ -322,7 +322,6 @@
322 322  * [0] RO2 relay channel is open and RO2 LED is OFF;
323 323  
324 324  
325 -
326 326  **LT22222-L:**
327 327  
328 328  * [1] DI2 channel is high input and DI2 LED is ON;
... ... @@ -340,6 +340,7 @@
340 340  
341 341  
342 342  
368 +
343 343  === 3.3.2 AT+MOD~=2, (Double DI Counting) ===
344 344  
345 345  
... ... @@ -408,6 +408,7 @@
408 408  
409 409  === 3.3.3 AT+MOD~=3, Single DI Counting + 2 x ACI ===
410 410  
437 +
411 411  **LT22222-L**: This mode the DI1 is used as a counting pin.
412 412  
413 413  [[image:image-20220523181246-5.png]]
... ... @@ -571,6 +571,7 @@
571 571  
572 572  (% style="color:#037691" %)**AT Command to set Trigger Condition**:
573 573  
601 +
574 574  (% style="color:#4f81bd" %)**Trigger base on voltage**:
575 575  
576 576  Format: AT+AVLIM=<AV1_LIMIT_LOW>,< AV1_LIMIT_HIGH>,<AV2_LIMIT_LOW>,< AV2_LIMIT_HIGH>
... ... @@ -700,6 +700,7 @@
700 700  
701 701  == 3.4 ​Configure LT via AT or Downlink ==
702 702  
731 +
703 703  User can configure LT I/O Controller via AT Commands or LoRaWAN Downlink Commands
704 704  
705 705  (((
... ... @@ -710,8 +710,12 @@
710 710  
711 711  * (% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for LT-22222-L.  User can see these commands below:
712 712  
742 +
743 +
744 +
713 713  === 3.4.1 Common Commands ===
714 714  
747 +
715 715  They should be available for each of Dragino Sensors, such as: change uplink interval, reset device. For firmware v1.5.4, user can find what common commands it supports: [[End Device AT Commands and Downlink Command>>doc:Main.End Device AT Commands and Downlink Command.WebHome]]
716 716  
717 717  
... ... @@ -718,8 +718,10 @@
718 718  
719 719  === 3.4.2 Sensor related commands ===
720 720  
754 +
721 721  ==== 3.4.2.1 Set Transmit Interval ====
722 722  
757 +
723 723  Set device uplink interval.
724 724  
725 725  * (% style="color:#037691" %)**AT Command:**
... ... @@ -739,6 +739,7 @@
739 739  
740 740  ==== 3.4.2.2 Set Work Mode (AT+MOD) ====
741 741  
777 +
742 742  Set work mode.
743 743  
744 744  * (% style="color:#037691" %)**AT Command:**
... ... @@ -758,6 +758,7 @@
758 758  
759 759  ==== 3.4.2.3 Poll an uplink ====
760 760  
797 +
761 761  * (% style="color:#037691" %)**AT Command:**
762 762  
763 763  There is no AT Command to poll uplink
... ... @@ -771,8 +771,10 @@
771 771  
772 772  
773 773  
811 +
774 774  ==== 3.4.2.4 Enable Trigger Mode ====
775 775  
814 +
776 776  Use of trigger mode, please check [[ADDMOD6>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
777 777  
778 778  * (% style="color:#037691" %)**AT Command:**
... ... @@ -793,6 +793,7 @@
793 793  
794 794  ==== 3.4.2.5 Poll trigger settings ====
795 795  
835 +
796 796  Poll trigger settings,
797 797  
798 798  * (% style="color:#037691" %)**AT Command:**
... ... @@ -809,6 +809,7 @@
809 809  
810 810  ==== 3.4.2.6 Enable / Disable DI1/DI2/DI3 as trigger ====
811 811  
852 +
812 812  Enable Disable DI1/DI2/DI2 as trigger,
813 813  
814 814  * (% style="color:#037691" %)**AT Command:**
... ... @@ -829,6 +829,7 @@
829 829  
830 830  ==== 3.4.2.7 Trigger1 – Set DI1 or DI3 as trigger ====
831 831  
873 +
832 832  Set DI1 or DI3(for LT-33222-L) trigger.
833 833  
834 834  * (% style="color:#037691" %)**AT Command:**
... ... @@ -848,8 +848,12 @@
848 848  * (% style="color:#037691" %)**Downlink Payload (prefix 0x09 01 ):**
849 849  * **0x09 01 aa bb cc    ** ~/~/ same as AT+TRIG1=aa,0x(bb cc)
850 850  
893 +
894 +
895 +
851 851  ==== 3.4.2.8 Trigger2 – Set DI2 as trigger ====
852 852  
898 +
853 853  Set DI2 trigger.
854 854  
855 855  * (% style="color:#037691" %)**AT Command:**
... ... @@ -876,6 +876,7 @@
876 876  
877 877  ==== 3.4.2.9 Trigger – Set AC (current) as trigger ====
878 878  
925 +
879 879  Set current trigger , base on AC port. See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
880 880  
881 881  * (% style="color:#037691" %)**AT Command**
... ... @@ -892,6 +892,7 @@
892 892  
893 893  ==== 3.4.2.10 Trigger – Set AV (voltage) as trigger ====
894 894  
942 +
895 895  Set current trigger , base on AV port. See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
896 896  
897 897  * (% style="color:#037691" %)**AT Command**
... ... @@ -908,6 +908,7 @@
908 908  
909 909  ==== 3.4.2.11 Trigger – Set minimum interval ====
910 910  
959 +
911 911  Set AV and AC trigger minimum interval, system won't response to the second trigger within this set time after the first trigger.
912 912  
913 913  * (% style="color:#037691" %)**AT Command**
... ... @@ -927,8 +927,10 @@
927 927  
928 928  
929 929  
979 +
930 930  ==== 3.4.2.12 DO ~-~- Control Digital Output DO1/DO2/DO3 ====
931 931  
982 +
932 932  * (% style="color:#037691" %)**AT Command**
933 933  
934 934  There is no AT Command to control Digital Output
... ... @@ -960,6 +960,7 @@
960 960  
961 961  ==== 3.4.2.13 DO ~-~- Control Digital Output DO1/DO2/DO3 with time control ====
962 962  
1014 +
963 963  * (% style="color:#037691" %)**AT Command**
964 964  
965 965  There is no AT Command to control Digital Output
... ... @@ -1026,6 +1026,7 @@
1026 1026  
1027 1027  ==== 3.4.2.14 Relay ~-~- Control Relay Output RO1/RO2 ====
1028 1028  
1081 +
1029 1029  * (% style="color:#037691" %)**AT Command:**
1030 1030  
1031 1031  There is no AT Command to control Relay Output
... ... @@ -1055,6 +1055,7 @@
1055 1055  
1056 1056  ==== 3.4.2.15 Relay ~-~- Control Relay Output RO1/RO2 with time control ====
1057 1057  
1111 +
1058 1058  * (% style="color:#037691" %)**AT Command:**
1059 1059  
1060 1060  There is no AT Command to control Relay Output
... ... @@ -1078,7 +1078,7 @@
1078 1078  
1079 1079  (% style="color:#4f81bd" %)**Third Byte(bb)**(%%): Control Method and Ports status:
1080 1080  
1081 -[[image:image-20220524093831-10.png]]
1135 +[[image:image-20220714135731-1.png||height="406" width="627"]]
1082 1082  
1083 1083  
1084 1084  (% style="color:#4f81bd" %)**Fourth/Fifth Bytes(cc)**(%%): Latching time. Unit: ms
... ... @@ -1088,21 +1088,21 @@
1088 1088  
1089 1089  **Example payload:**
1090 1090  
1091 -**~1. 05 01 11 07 D0**
1145 +**~1. 05 01 11 07 D**
1092 1092  
1093 -Relay1 and Relay 2 will be set to NO , last 2 seconds, then change back to original state.
1147 +Relay1 and Relay 2 will be set to NC , last 2 seconds, then change back to original state.
1094 1094  
1095 1095  **2. 05 01 10 07 D0**
1096 1096  
1097 -Relay1 will change to NO, Relay2 will change to NC, last 2 seconds, then both change back to original state.
1151 +Relay1 will change to NC, Relay2 will change to NO, last 2 seconds, then both change back to original state.
1098 1098  
1099 1099  **3. 05 00 01 07 D0**
1100 1100  
1101 -Relay1 will change to NC, Relay2 will change to NO, last 2 seconds, then relay change to NO, Relay2 change to NC.
1155 +Relay1 will change to NO, Relay2 will change to NC, last 2 seconds, then relay change to NC,Relay2 change to NO.
1102 1102  
1103 1103  **4. 05 00 00 07 D0**
1104 1104  
1105 -Relay 1 & relay2 will change to NC, last 2 seconds, then both change to NO.
1159 +Relay 1 & relay2 will change to NO, last 2 seconds, then both change to NC.
1106 1106  
1107 1107  
1108 1108  
... ... @@ -1109,6 +1109,7 @@
1109 1109  
1110 1110  ==== 3.4.2.16 Counting ~-~- Voltage threshold counting ====
1111 1111  
1166 +
1112 1112  When voltage exceed the threshold, count. Feature see [[MOD4>>||anchor="H3.3.4AT2BMOD3D42CSingleDICounting2B1xVoltageCounting"]]
1113 1113  
1114 1114  * (% style="color:#037691" %)**AT Command:**
... ... @@ -1125,6 +1125,7 @@
1125 1125  
1126 1126  ==== 3.4.2.17 Counting ~-~- Pre-configure the Count Number ====
1127 1127  
1183 +
1128 1128  * (% style="color:#037691" %)**AT Command:**
1129 1129  
1130 1130  **AT+SETCNT=aa,(bb cc dd ee) **
... ... @@ -1147,6 +1147,7 @@
1147 1147  
1148 1148  ==== 3.4.2.18 Counting ~-~- Clear Counting ====
1149 1149  
1206 +
1150 1150  Clear counting for counting mode
1151 1151  
1152 1152  * (% style="color:#037691" %)**AT Command:**
... ... @@ -1163,6 +1163,7 @@
1163 1163  
1164 1164  ==== 3.4.2.19 Counting ~-~- Change counting mode save time ====
1165 1165  
1223 +
1166 1166  * (% style="color:#037691" %)**AT Command:**
1167 1167  
1168 1168  **AT+COUTIME=60  **~/~/ Set save time to 60 seconds. Device will save the counting result in internal flash every 60 seconds. (min value: 30)
... ... @@ -1182,6 +1182,7 @@
1182 1182  
1183 1183  == 3.5 Integrate with Mydevice ==
1184 1184  
1243 +
1185 1185  Mydevices provides a human friendly interface to show the sensor data, once we have data in TTN, we can use Mydevices to connect to TTN and see the data in Mydevices. Below are the steps:
1186 1186  
1187 1187  (((
... ... @@ -1190,14 +1190,15 @@
1190 1190  
1191 1191  (((
1192 1192  (% style="color:blue" %)**Step 2**(%%): To configure the Application to forward data to Mydevices you will need to add integration. To add the Mydevices integration, perform the following steps:
1252 +
1253 +
1193 1193  )))
1194 1194  
1195 -[[image:1653356737703-362.png||height="232" width="732"]]
1256 +[[image:image-20220719105525-1.png||height="377" width="677"]]
1196 1196  
1197 -[[image:image-20220524094641-11.png||height="390" width="723"]]
1198 1198  
1199 1199  
1200 -[[image:image-20220524094641-12.png||height="402" width="718"]]
1260 +[[image:image-20220719110247-2.png||height="388" width="683"]]
1201 1201  
1202 1202  
1203 1203  (% style="color:blue" %)**Step 3**(%%): Create an account or log in Mydevices.
... ... @@ -1230,8 +1230,10 @@
1230 1230  
1231 1231  == 3.6 Interface Detail ==
1232 1232  
1293 +
1233 1233  === 3.6.1 Digital Input Port: DI1/DI2 /DI3 ( For LT-33222-L, low active ) ===
1234 1234  
1296 +
1235 1235  Support NPN Type sensor
1236 1236  
1237 1237  [[image:1653356991268-289.png]]
... ... @@ -1240,6 +1240,7 @@
1240 1240  
1241 1241  === 3.6.2 Digital Input Port: DI1/DI2 ( For LT-22222-L) ===
1242 1242  
1305 +
1243 1243  (((
1244 1244  The DI port of LT-22222-L can support NPN or PNP output sensor.
1245 1245  )))
... ... @@ -1246,7 +1246,9 @@
1246 1246  
1247 1247  (((
1248 1248  (((
1249 -Internal circuit as below, the NEC2501 is a photocoupler, the Active current (from NEC2501 pin 1 to pin 2 is 1ma and the max current is 50mA. When there is active current pass NEC2501 pin1 to pin2. The DI will be active high
1312 +Internal circuit as below, the NEC2501 is a photocoupler, the Active current (from NEC2501 pin 1 to pin 2 is 1ma and the max current is 50mA. When there is active current pass NEC2501 pin1 to pin2. The DI will be active high.
1313 +
1314 +
1250 1250  )))
1251 1251  )))
1252 1252  
... ... @@ -1291,6 +1291,8 @@
1291 1291  
1292 1292  (((
1293 1293  
1359 +
1360 +
1294 1294  )))
1295 1295  
1296 1296  (((
... ... @@ -1322,6 +1322,8 @@
1322 1322  
1323 1323  (((
1324 1324  
1392 +
1393 +
1325 1325  )))
1326 1326  
1327 1327  (((
... ... @@ -1355,6 +1355,7 @@
1355 1355  
1356 1356  === 3.6.3 Digital Output Port: DO1/DO2 /DO3 ===
1357 1357  
1427 +
1358 1358  NPN output: GND or Float. Max voltage can apply to output pin is 36v.
1359 1359  
1360 1360  [[image:1653357531600-905.png]]
... ... @@ -1363,6 +1363,7 @@
1363 1363  
1364 1364  === 3.6.4 Analog Input Interface ===
1365 1365  
1436 +
1366 1366  The analog input interface is as below. The LT will measure the IN2 voltage so to calculate the current pass the Load. The formula is:
1367 1367  
1368 1368  
... ... @@ -1394,6 +1394,7 @@
1394 1394  
1395 1395  === 3.6.5 Relay Output ===
1396 1396  
1468 +
1397 1397  (((
1398 1398  The LT serial controller has two relay interfaces; each interface uses two pins of the screw terminal. User can connect other device’s Power Line to in serial of RO1_1 and RO_2. Such as below:
1399 1399  )))
... ... @@ -1406,6 +1406,7 @@
1406 1406  
1407 1407  == 3.7 LEDs Indicators ==
1408 1408  
1481 +
1409 1409  [[image:image-20220524100748-11.png]]
1410 1410  
1411 1411  
... ... @@ -1412,8 +1412,10 @@
1412 1412  
1413 1413  = 4. Use AT Command =
1414 1414  
1488 +
1415 1415  == 4.1 Access AT Command ==
1416 1416  
1491 +
1417 1417  LT supports AT Command set. User can use a USB to TTL adapter plus the 3.5mm Program Cable to connect to LT for using AT command, as below.
1418 1418  
1419 1419  [[image:1653358238933-385.png]]
... ... @@ -1618,6 +1618,7 @@
1618 1618  
1619 1619  == 4.2 Common AT Command Sequence ==
1620 1620  
1696 +
1621 1621  === 4.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
1622 1622  
1623 1623  (((
... ... @@ -1741,13 +1741,16 @@
1741 1741  
1742 1742  === 4.2.3 Change to Class A ===
1743 1743  
1820 +
1744 1744  If sensor JOINED
1745 1745  (% style="background-color:#dcdcdc" %)AT+CLASS=A
1746 1746  ATZ
1747 1747  
1748 1748  
1826 +
1749 1749  = 5. FAQ =
1750 1750  
1829 +
1751 1751  == 5.1 How to upgrade the image? ==
1752 1752  
1753 1753  
... ... @@ -1769,7 +1769,9 @@
1769 1769  
1770 1770  
1771 1771  (% style="color:blue" %)**For LT-22222-L**(%%):
1772 -Hold down the PRO button and then momentarily press the RST reset button and the **DO1 led** will change from OFF to ON. When **DO1 LED** is on, it means the device is in download mode.
1851 +Hold down the PRO button and then momentarily press the RST reset button and the (% style="color:red" %)**DO1 led**(%%) will change from OFF to ON. When (% style="color:red" %)**DO1 LED**(%%) is on, it means the device is in download mode.
1852 +
1853 +
1773 1773  )))
1774 1774  
1775 1775   [[image:image-20220524103407-12.png]]
... ... @@ -1781,6 +1781,7 @@
1781 1781  
1782 1782  (% style="color:red" %)**Notice**(%%): In case user has lost the program cable. User can hand made one from a 3.5mm cable. The pin mapping is:
1783 1783  
1865 +
1784 1784  [[image:1653360054704-518.png||height="186" width="745"]]
1785 1785  
1786 1786  
... ... @@ -1789,6 +1789,8 @@
1789 1789  
1790 1790  
1791 1791  == 5.2 How to change the LoRa Frequency Bands/Region? ==
1874 +
1875 +
1792 1792  )))
1793 1793  )))
1794 1794  
... ... @@ -1799,7 +1799,10 @@
1799 1799  (((
1800 1800  
1801 1801  
1886 +
1802 1802  == 5.3 How to set up LT to work with Single Channel Gateway such as LG01/LG02? ==
1888 +
1889 +
1803 1803  )))
1804 1804  
1805 1805  (((
... ... @@ -1817,7 +1817,7 @@
1817 1817  )))
1818 1818  
1819 1819  (((
1820 -(% style="color:#4f81bd" %)**Step1**(%%): Log in TTN, Create an ABP device in the application and input the network session key (NETSKEY), app session key (APPSKEY) from the device.
1907 +(% style="color:blue" %)**Step1**(%%):  Log in TTN, Create an ABP device in the application and input the network session key (NETSKEY), app session key (APPSKEY) from the device.
1821 1821  )))
1822 1822  
1823 1823  (((
... ... @@ -1825,12 +1825,12 @@
1825 1825  )))
1826 1826  
1827 1827  (((
1828 -(% style="color:red" %)Note: user just need to make sure above three keys match, User can change either in TTN or Device to make then match. In TTN, NETSKEY and APPSKEY can be configured by user in setting page, but Device Addr is generated by TTN.
1915 +(% style="color:red" %)**Note: user just need to make sure above three keys match, User can change either in TTN or Device to make then match. In TTN, NETSKEY and APPSKEY can be configured by user in setting page, but Device Addr is generated by TTN.**
1829 1829  )))
1830 1830  
1831 1831  
1832 1832  (((
1833 -(% style="color:#4f81bd" %)**Step2**(%%)**: **Run AT Command to make LT work in Single frequency & ABP mode. Below is the AT commands:
1920 +(% style="color:blue" %)**Step2**(%%)**:  **Run AT Command to make LT work in Single frequency & ABP mode. Below is the AT commands:
1834 1834  )))
1835 1835  
1836 1836  (((
... ... @@ -1854,16 +1854,21 @@
1854 1854  [[image:1653360498588-932.png||height="485" width="726"]]
1855 1855  
1856 1856  
1944 +
1857 1857  == 5.4 Can I see counting event in Serial? ==
1858 1858  
1947 +
1859 1859  (((
1860 -User can run AT+DEBUG command to see the counting event in serial. If firmware too old and doesn’t support AT+DEBUG. User can update to latest firmware first.
1949 +User can run AT+DEBUG command to see the counting event in serial. If firmware too old and doesn't support AT+DEBUG. User can update to latest firmware first.
1861 1861  
1862 1862  
1952 +
1863 1863  == 5.5 Can i use point to point communication for LT-22222-L? ==
1864 1864  
1955 +
1865 1865  Yes, please refer [[Point to Point Communication>>doc:Main. Point to Point Communication of LT-22222-L.WebHome]]
1866 1866  
1958 +
1867 1867  
1868 1868  )))
1869 1869  
... ... @@ -1870,6 +1870,7 @@
1870 1870  (((
1871 1871  == 5.6 Why does the relay output become the default and open relay after the lt22222 is powered off? ==
1872 1872  
1965 +
1873 1873  If the device is not shut down, but directly powered off.
1874 1874  
1875 1875  It will default that this is a power-off state.
... ... @@ -1879,12 +1879,15 @@
1879 1879  After restart, the status before power failure will be read from flash.
1880 1880  
1881 1881  
1975 +
1882 1882  = 6. Trouble Shooting =
1883 1883  )))
1884 1884  
1885 1885  (((
1886 1886  (((
1887 -== 6.1 Downlink doesn’t work, how to solve it? ==
1981 +== 6.1 Downlink doesn't work, how to solve it? ==
1982 +
1983 +
1888 1888  )))
1889 1889  )))
1890 1890  
... ... @@ -1895,7 +1895,10 @@
1895 1895  (((
1896 1896  
1897 1897  
1994 +
1898 1898  == 6.2 Have trouble to upload image. ==
1996 +
1997 +
1899 1899  )))
1900 1900  
1901 1901  (((
... ... @@ -1905,7 +1905,10 @@
1905 1905  (((
1906 1906  
1907 1907  
1908 -== 6.3 Why I can’t join TTN in US915 /AU915 bands? ==
2007 +
2008 +== 6.3 Why I can't join TTN in US915 /AU915 bands? ==
2009 +
2010 +
1909 1909  )))
1910 1910  
1911 1911  (((
... ... @@ -1913,23 +1913,28 @@
1913 1913  )))
1914 1914  
1915 1915  
2018 +
1916 1916  = 7. Order Info =
1917 1917  
2021 +
1918 1918  (% style="color:#4f81bd" %)**LT-22222-L-XXX:**
1919 1919  
1920 -
1921 1921  (% style="color:#4f81bd" %)**XXX:**
1922 1922  
1923 -* (% style="color:#4f81bd" %)**EU433**(%%): LT with frequency bands EU433
1924 -* (% style="color:#4f81bd" %)**EU868**(%%): LT with frequency bands EU868
1925 -* (% style="color:#4f81bd" %)**KR920**(%%): LT with frequency bands KR920
1926 -* (% style="color:#4f81bd" %)**CN470**(%%): LT with frequency bands CN470
1927 -* (% style="color:#4f81bd" %)**AS923**(%%): LT with frequency bands AS923
1928 -* (% style="color:#4f81bd" %)**AU915**(%%): LT with frequency bands AU915
1929 -* (% style="color:#4f81bd" %)**US915**(%%): LT with frequency bands US915
1930 -* (% style="color:#4f81bd" %)**IN865**(%%): LT with frequency bands IN865
1931 -* (% style="color:#4f81bd" %)**CN779**(%%): LT with frequency bands CN779
2026 +* (% style="color:red" %)**EU433**(%%):  LT with frequency bands EU433
2027 +* (% style="color:red" %)**EU868**(%%):  LT with frequency bands EU868
2028 +* (% style="color:red" %)**KR920**(%%):  LT with frequency bands KR920
2029 +* (% style="color:red" %)**CN470**(%%):  LT with frequency bands CN470
2030 +* (% style="color:red" %)**AS923**(%%):  LT with frequency bands AS923
2031 +* (% style="color:red" %)**AU915**(%%):  LT with frequency bands AU915
2032 +* (% style="color:red" %)**US915**(%%):  LT with frequency bands US915
2033 +* (% style="color:red" %)**IN865**(%%):  LT with frequency bands IN865
2034 +* (% style="color:red" %)**CN779**(%%):  LT with frequency bands CN779
1932 1932  
2036 +
2037 +
2038 +
2039 +
1933 1933  = 8. Packing Info =
1934 1934  
1935 1935  
... ... @@ -1947,8 +1947,13 @@
1947 1947  * Package Size / pcs : 14.5 x 8 x 5 cm
1948 1948  * Weight / pcs : 170g
1949 1949  
2057 +
2058 +
2059 +
2060 +
1950 1950  = 9. Support =
1951 1951  
2063 +
1952 1952  * (((
1953 1953  Support is provided Monday to Friday, from 09:00 to 18:00 GMT+8. Due to different timezones we cannot offer live support. However, your questions will be answered as soon as possible in the before-mentioned schedule.
1954 1954  )))
... ... @@ -1957,12 +1957,17 @@
1957 1957  
1958 1958  
1959 1959  
2072 +
1960 1960  
1961 1961  )))
1962 1962  
1963 1963  = 10. Reference​​​​​ =
1964 1964  
2078 +
1965 1965  * LT-22222-L: [[http:~~/~~/www.dragino.com/products/lora-lorawan-end-node/item/156-lt-22222-l.html>>url:http://www.dragino.com/products/lora-lorawan-end-node/item/156-lt-22222-l.html]]
1966 1966  * [[Image Download>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]]
1967 1967  * [[AT Command Manual>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/]]
1968 1968  * [[Hardware Source>>url:https://github.com/dragino/Lora/tree/master/LT/LT-33222-L/v1.0]]
2083 +
2084 +
2085 +
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